Hi Raj,
Unfortunately, excel documents like xlsx or csv is not supported by OneSpan Sign yet, only following types of documents can be uploaded to transaction as document (documented here):
Adobe's Portable Document Format (*.pdf)
Microsoft Word (*.doc or *.docx)
Open Office (*.odt)
Text (.txt)
Rich Text Format (.rtf)
Duo
Duo LiangOneSpan Evangelism and Partner Integrations Developer
Reply to: Upload an excel document
Wednesday, July 24, 2019 at 06:18amDuo Liang OneSpan Evangelism and Partner Integrations Developer